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Information processing apparatus, and method for controlling image forming apparatus

a technology of information processing apparatus and image forming apparatus, which is applied in the field of gloss control, can solve the problem of not being able to sufficiently control and achieve the effect of suitably controlling the smoothness of the print medium surface depending on the accumulation of pigment ink

Active Publication Date: 2016-02-02
CANON KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention helps control the smoothness of the surface of a print medium that has been printed multiple times with pigment ink.

Problems solved by technology

However, when printing is performed using pigment ink, the pigment particles hardly permeate into the print medium and thus accumulate on the print medium surface.
It was found, however, when the technique of Patent Document 1 is applied to multi-pass printing in which the amount of ink per pass is small, it may not be possible to sufficiently control the smoothness of the print medium surface depending on accumulation of the pigment ink.

Method used

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  • Information processing apparatus, and method for controlling image forming apparatus
  • Information processing apparatus, and method for controlling image forming apparatus
  • Information processing apparatus, and method for controlling image forming apparatus

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0024]An image forming apparatus according to a first embodiment of the present invention will be described below taking an inkjet printing apparatus that performs multi-pass printing as an example.

[0025]Outline

[0026]The present inventors have found that the smoothness of the print medium surface changes when an image is formed using a pigment ink by changing the distribution of recording rate (thinning ratio) for each pass in multi-pass printing. Based on this finding, in the present embodiment, the smoothness depending on accumulation of the pigment ink in multi-pass printing is controlled by controlling the distribution of printing ratio for each pass in the multi-pass printing, whereby the smoothness can be controlled more suitably in multi-pass printing as compared to the technique disclosed in Patent Document 1 (in which the printing ratio among passes is constant).

[0027]Apparatus Configuration

[0028]FIG. 1 is a schematic perspective view of an inkjet printing apparatus 100 acc...

second embodiment

Outline

[0070]According to a second embodiment, when a printing apparatus performs printing on glossy paper that is not supported by the standard driver, or when an influence resulting from individual differences in printing apparatuses, the environment or the like occurs, desired gloss properties can be obtained by selecting a more accurate and suitable printing method.

[0071]Apparatus Configuration

[0072]An inkjet printing apparatus 200 according to the second embodiment is obtained by adding a gloss sensor to the inkjet printing apparatus 100 (FIG. 2) of the first embodiment. The gloss sensor is included in the sensor / SW unit 407 shown in FIG. 2. The gloss sensor (gloss measuring unit) measures the gloss level of an image printed on a print medium and transfers information regarding the acquired gloss level to the CPU 402. Accordingly, it is suitable to attach the gloss sensor in the periphery of a paper discharge unit.

[0073]In the experiment conducted by the inventors, a photo-refl...

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PUM

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Abstract

In order to control smoothness depending on accumulation of a pigment ink in the multi-pass printing, an information processing apparatus for an image forming apparatus that forms an image on the same area in a print medium by a plurality of printing scans with the same pigment ink, the information processing apparatus comprises an input unit that receives inputs of image data and a target gloss level; a storage unit that stores a plurality of pattern sets including a recording pattern for each of the printing scans; and a generation unit that generates pattern data corresponding to the recording patterns by selectively using the pattern sets based on the image data and the target gloss level; wherein at least one of the plurality of pattern sets has a different thinning ratio in the recording pattern for each of the printing scans on the same area.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to gloss control when an image is formed on a print medium.[0003]2. Description of the Related Art[0004]Inkjet printing apparatuses are classified into a serial-type inkjet printing apparatus in which a printhead scans the printing area in vertical and horizontal directions and a line-head type inkjet printing apparatus where nozzles extend on the full width of the printing area, and scanning is performed in only one direction. The serial-type inkjet printing apparatus, which is low cost, is being widely used. With the serial-type inkjet printing apparatus, images are sequentially formed on a print medium by, while ink is ejected from the printhead, alternately repeating printing main-scanning in which a carriage including a printhead is moved / scanned on the print medium and sub-scanning in which the print medium is conveyed by a predetermined amount in a direction perpendicular to the dire...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B41J2/15B41J29/38G06K15/10
CPCB41J29/38G06K15/107
Inventor OCHIAI, TAKASHI
Owner CANON KK
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